Source:http://linkedlifedata.com/resource/umls/id/C0005810
CSP: classification systems (or schemes) of the different antigens located on erythrocytes; the antigens are the phenotypic expression of the genetic differences characteristic of specific blood groups.,NCI: A classification of blood based on the presence or absence of inherited antigenic substances on the surface of erythrocytes.,MSH: The classification systems (or schemes) based on the different ANTIGENS located on ERYTHROCYTES.